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Report for 2017
Annual Climatological Summary for 2017
Name: Riverweather.com City: St. Charles County State: MO
Elevation: 430 ft Lat: N 38° 55' 52" Lon: W 090° 28' 28"
Temperature (°F), Heat Base: 65.0 Cool Base: 65.0
Dep. Heat Cool Max Max Min Min
Mean Mean From Deg Deg >= <= <= <=
YR MO Max Min Mean Norm Days Days Hi Date Low Date 90.0 32.0 32.0 0.0
------------------------------------------------------------------------------------
17 1 43.4 29.6 36.2 5.0 893 1 69.5 21 4.3 7 0 6 17 0
17 2 56.8 35.4 46.2 11.4 537 10 78.9 20 18.7 9 0 1 11 0
17 3 57.0 36.6 46.7 2.0 534 11 81.6 20 0.0 5 0 0 9 2
17 4 71.3 51.6 61.1 4.7 198 80 88.1 19 40.8 5 0 0 0 0
17 5 75.9 57.2 66.0 -0.1 109 141 89.0 18 46.3 3 0 0 0 0
17 6 85.8 66.2 75.9 0.6 6 332 94.9 21 56.1 27 6 0 0 0
17 7 90.6 71.4 80.8 1.2 0 488 101.0 22 62.5 30 17 0 0 0
17 8 83.8 65.4 74.0 -3.8 6 284 93.9 20 55.7 5 4 0 0 0
17 9 83.5 61.6 71.8 1.6 35 240 96.2 20 49.6 7 9 0 0 0
17 10 70.8 51.4 60.4 1.7 245 101 88.9 14 28.0 29 0 0 2 0
17 11 57.7 37.9 47.1 1.7 546 9 77.9 2 26.0 22 0 0 6 0
17 12 43.4 26.7 34.7 -0.2 940 1 70.8 4 3.1 31 0 8 20 0
------------------------------------------------------------------------------------
68.3 49.2 58.4 2.1 4052 1703 101.0 Jul 0.0 Mar 36 15 65 2
Precipitation (in)
Dep. Max Days of Rain
From Obs. >=
YR MO Total Norm Day Date 0.01 0.10 1.00
---------------------------------------------
17 1 0.76 -1.60 0.48 2 8 2 0
17 2 0.24 -1.97 0.09 21 4 0 0
17 3 2.96 0.68 0.80 30 10 6 0
17 4 8.12 4.76 2.54 29 13 9 3
17 5 5.29 1.45 1.64 3 11 7 1
17 6 4.10 -0.12 1.60 18 8 4 1
17 7 2.02 -2.15 0.89 27 6 5 0
17 8 1.66 -1.81 0.78 16 8 4 0
17 9 0.30 -2.68 0.19 18 5 1 0
17 10 2.01 -1.14 0.65 15 14 6 0
17 11 0.35 -2.45 0.19 18 5 1 0
17 12 0.49 -2.41 0.18 23 3 3 0
---------------------------------------------
28.30 -9.44 2.54 Apr 95 48 5
Wind Speed (mph)
Dom
YR MO Avg. Hi Date Dir
------------------------------
17 1 4.5 42.0 10 WNW
17 2 3.7 34.0 24 WNW
17 3 4.5 51.0 7 NNW
17 4 3.4 36.0 6 NW
17 5 3.1 30.0 4 WNW
17 6 2.3 32.0 14 WNW
17 7 1.9 62.0 23 WNW
17 8 1.5 27.0 4 NNW
17 9 1.5 26.0 6 NW
17 10 2.5 33.0 15 WNW
17 11 2.4 49.0 5 NW
17 12 4.1 41.0 11 WNW
------------------------------
3.0 62.0 Jul NW